No, the Hawk electronic tension head utilizes the DC (direct-current) motor. It does not need any warm up tume at all. You just need to turn on the power switch and start to pull the tension immediately.

Actually the AC motor does not need any warm up tume at all. You can connect the power input and start to pull the tension immediately. But when the AC motor gets warm, it lowers tension. It means that when the AC motor is cold, it put higher tension. When the AC motor is warm, it put lower tension.

On the front panel of Silent Partner's AC motor electric tension head, it indicates that "RUN FREE FOR 5 MIN TO WARM UP". What is the reason? Just because the AC motor gets warm, it lowers tension. Silent Partner uses this statement to cover up this fact.

In 1999 Deuce Industries Ltd. in Canada began to import the stringing machines from the factory (Lily-Lee & Co., Ltd). The Silent Partner imported the base, mounting system, clamps, accessories, and shipping box of the Eagnas Hawk 20 stringing machine from the same factory. Then by attaching an electric tension head, an e.stringer machine is created. See the e.stringer clone history.

In May 2000 an ex-employee of the stringing machine factory (Lily-Lee & Co., Ltd.) began to copy Eagnas Hawk and Hyper series machines.
Later on Silent Partner imports stringing machines from this startup company (Xpider Co.).

Let us exam whether this is a valid statement. From 1999 to 2000 Silent Partner imported the red color mounting system of the Eagnas Hawk 20 from the factory (Lily-Lee & Co., Ltd) for his e.Stringer.
(Click here to view the Silent Partner's own statement, which filed in New York Court.)
But later on strange enough was he even importing the copied red color mounting system and design for his e.stringer. From Silent Partner's statement above, Silent Partner has very high business ethics and standard. He will not use the other brands' distinctive look and color scheme. But he imports the copied red color mounting system and design for his e.stringer. This behavior does not match with his standard.
It is very ironic. What certifies his critic as a valid statement. His statement shall apply to himself as "Most Silent Partner machines are knock offs of Eagnas brand."